/*all tag*/
* {
    margin: 0;
    padding: 0;
    border: none;
    font-size: 1.5625vw;
    font-family: "Microsoft YaHei";
}

html, body {
    height: 100%;
    width: 100%;
    overflow: hidden;
}

/* music */
.music {
    position: fixed;
    top: 3vh;
    right: 4vw;
    z-index: 5;
    width: 15vw;
    height: 15vw;
    border: 4px solid #ef1639;
    border-radius: 50%;
    background: #fff;
}

.music > img:first-of-type {
    z-index: 1;
    position: absolute;
    top: 24%;
    right: 2.5%;
    width: 28.421%;
}

.music > img:last-of-type {
    z-index: 0;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    margin: auto;
    width: 79%;
}
.music > img.play{
    animation: music_disc 4s linear infinite;/*等速，重复*/
}
@keyframes music_disc {
    0%{
        transform: rotate(0deg);
    }
    100%{
        transform: rotate(360deg);
    }

}

/*  page bg*/
.page {
    position: absolute;
    width: 100%;
    height: 100%;
}

.page > .bg {
    z-index: -1;
    position: absolute;
    height: 100%;
    width: 100%;
}

#page2 > .p1_lantern {
    position: absolute;
    top: -3.4%;
    right: 0;
    left: 0;
    margin: auto;
    background-size: 100%;
    color: #fff;
    width: 45vw;
    height: 71.2vh;
    font-size: 5.506rem;
    padding-top: 20vh;
    text-align: center;
    box-sizing: border-box;
}

/* page2 */
#page2 > .bg {
    background: url("img/p2_bg.jpg") no-repeat center bottom;
    background-size: 100%;
}

#page2 {
    display: block;
}

#page2 > .p2_circle {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    margin: auto;
    border-radius: 50%;
    background: url("img/p2_circle_outer.png") no-repeat center center;
    background-size: 100%;
    width: 59.375vw;
    height: 59.375vw;
    animation: p2_circle_outer 1s linear 3s infinite;
}
@keyframes p2_circle_outer {
    0%{
        transform: rotate(0deg);
    }
    100%{
        transform: rotate(-360deg);
    }

}
#page2 > .p2_circle:before {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    content: "";
    margin: auto;
    border-radius: 50%;
    background: url("img/p2_circle_middle.png") no-repeat center center;
    background-size: 100%;
    width: 45.625vw;
    height: 45.625vw;
    animation: p2_circle_middle 1s linear 2s infinite;
}
@keyframes p2_circle_middle {
    0%{
        transform: rotate(0deg);
    }
    100%{
        transform: rotate(-720deg);
    }

}


#page2 > .p2_circle:after {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    content: "";
    margin: auto;
    border-radius: 50%;
    background: url("img/p2_circle_inner.png") no-repeat center center;
    background-size: 100%;
    width: 39.9375vw;
    height: 39.9375vw;
    /*page2的旋转*/
    animation: p2_circle_inner 1s linear 1s infinite;
}
@keyframes p2_circle_inner {
    0%{
        transform: rotate(0deg);
    }
    100%{
        transform: rotate(-1080deg);
    }

}

#page2 > .p2_2016 {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    margin: auto;
    background: url("img/2019.png") no-repeat center center;
    background-size: 100%;
    width: 27.5vw;
    height: 6.24vh;
}
